To prevent stickiness in frozen cooked dal, cool it completely before freezing in portioned airtight containers or freezer bags, and consider adding a small amount of oil or ghee before freezing.
Stickiness in frozen and thawed dal is primarily caused by starch retrogradation. This is the process where starch molecules re-associate and crystallize as the dal cools and freezes, leading to a change in texture. Here's a step-by-step guide to minimize this:
Cool Completely: Allow the cooked dal to cool down to room temperature before freezing. This prevents condensation from forming inside the container, which can contribute to stickiness.
Portion Control: Divide the dal into individual or family-sized portions. This allows you to thaw only what you need, preventing repeated freezing and thawing, which exacerbates starch retrogradation.
Airtight Containers or Freezer Bags: Use airtight containers or freezer bags specifically designed for freezing. Remove as much air as possible from the bags to prevent freezer burn and ice crystal formation.
Add a Little Fat: Adding a small amount of oil or ghee (clarified butter) to the dal before freezing can help to coat the starch granules and reduce their tendency to stick together. About a teaspoon per serving should be sufficient.
Thaw Properly: Thaw the dal in the refrigerator overnight or use the defrost setting on your microwave. Avoid thawing at room temperature for extended periods, as this can promote bacterial growth.
Reheat Gently: When reheating, add a splash of water or broth if needed to loosen the dal and prevent it from drying out. Stir frequently over low heat until heated through.
Consider using a pressure cooker or Instant Pot to cook your dal initially. Pressure cooking can help to break down the starch molecules more effectively, resulting in a smoother texture even after freezing and thawing.